24 DAYS

Jack Nicklaus, then 20, shot an

11-under, 269 in the 1960 World Amateur Team Championship at Merion. As

Nicklaus has noted, the course in 1960 was prepared by the International Golf Federation, not the USGA. Nicklaus shot a 280 at the 1971 U.S. Open when he lost in a playoff to Lee Trevino.